Intelligent electronic type voltage transformer

A voltage transformer, electronic technology, applied in the direction of measuring current/voltage, voltage divider, transformer/inductor coil/winding/connection, etc., can solve the problem of high insulation performance that cannot meet the requirements of digital substation, Problems such as bulky transformers, etc., to enhance the ability to resist electromagnetic interference, light weight, and overcome the effect of narrow frequency band

CN103558440AActive Publication Date: 2014-02-05JIANGSU JINGJIANG INSTR TRANSFORMER FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-02-05

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Abstract

The invention discloses an intelligent electronic type voltage transformer. The intelligent electronic type voltage transformer comprises a far-end module, an amorphous iron core, an optical fiber composite insulator, an insulating oil layer, a resistance-capacitance voltage divider, an optical fiber and a combination unit. According to the intelligent electronic type voltage transformer, the iron core is made of amorphous materials, a resistance-capacitance voltage division principle is used as a design principle, and a transformer body is formed by pouring insulting silicone rubber on the amorphous iron core, a primary winding and a secondary winding. According to the intelligent electronic type voltage transformer, the iron core is made of amorphous alloy, so that the intelligent electronic type voltage transformer has high saturated magnetic induction and low loss, the weight and the size of the intelligent electronic type voltage transformer can be reduced greatly, and efficiency can be improved greatly. In addition, the intelligent electronic type voltage transformer has low noise, is easy and convenient to install and use, does not need maintaining in an operation process, is light in weight, high in accuracy, good in linearity and wide in measuring range, overcomes the defects that a conventional electromagnetic voltage transformer is narrow in frequency band, slow in response and the like, and has practical significance to transformation of and improvement to existing electrical equipment, and the ability to resist electromagnetic interference is enhanced.
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Description

technical field

[0001] The invention belongs to the technical field of digital intelligent substation automation, and in particular relates to an intelligent electronic voltage transformer. Background technique

[0002] The voltage transformer is a device that connects the primary side between the bus bar and the ground of the high-voltage power grid, and the secondary side is connected to the power meter, the watt-hour meter, and the electromechanical protection equipment to provide bus voltage signals for the electromechanical protection equipment and electric energy metering. Due to the high-voltage power grid The voltage is very high, and the insulation requirements of the voltage transformer are also very high; and the measurement accuracy is also very high (generally requires 0.2 level, 3P), the traditional voltage transformer based on the theory of electromagnetic induction, its principle is the transformer principle , its structure is like a small-capacity transforme...

Examples

Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] figure 1 The structure of the intelligent electronic voltage transformer provided by the present invention is shown. For ease of illustration, only the parts relevant to the present invention are shown.

[0026] The intelligent electronic voltage transformer according to the embodiment of the present invention includes: a remote module, an amorphous iron core, an optical fiber composite insulator, an insulating oil layer, a resistance-capacitance voltage divider, an optical fiber, and a merging unit;

[0027] The remote module is installed on the top of the main body of the electronic voltage transformer, which is ...